Andrei Matei

Co-founder of Data Ex Machina

[Andrei Matei @andreimatei1]

@abestanway @agounardes Well, the 94% percent includes indeed people who were bumped over $1M by the QSBS income, but 74% corresponds to $1M income without the QSBS income. The real fallacy here, though, is that these percentages refer to dollar values of the exclusions, not number claims/people.

[Andrei Matei @andreimatei1]

@agounardes The 94% refers to the dollar amount of the exclusions, not the number of people affected. The majority of claims come from people with much lower incomes.

[Andrei Matei @andreimatei1]

Excited to give a presentation at HYTRADBOI 2025 about what we've been working on!

[Have you tried rubbing a database on it? @hytradboi]

@jonathoda Talk #3: "Side-Eye: ask your programs anything" by Andrei Matei (@andreimatei1)

[Andrew Werner @ajwerner]

Ever wanna just know if a line of code is being hit? Or how often? Or from where? In prod!?

We've been hard at work making that just a click away with https://t.co/YIJsVGr0wd!

[Andrei Matei @andreimatei1]

@felixge Rando question - is there any code out there for parsing trace files that allows some degree of random access to different time spans, rather than the reader API in x/exp/trace that reads all events?
FWIW, for Side-Eye we turn traces into DuckDB, which works out nice for analysis

[Andrei Matei @andreimatei1]

@justinjaffray I figured something out.

[Andrei Matei @andreimatei1]

@halvarflake FWIW, CockroachDB is written in Go and cares about what's keeping allocations alive - a question for which there's almost no tooling.

[Andrei Matei @andreimatei1]

@MarkCallaghanDB @FranckPachot Postgres lets you query the outcome of a previous txn with txid_status().

[Andrei Matei @andreimatei1]

@halvarflake @0x0F10 Attributing both IOPS and disk bandwidth to code paths is important for databases.

[Andrei Matei @andreimatei1]

@convex Welcome to NY!

[Andrei Matei @andreimatei1]

@justinjaffray Elon is on the 10th floor for the midnight meeting.

[Andrei Matei @andreimatei1]

@largedatabank @justinjaffray Please contribute here for the millennials https://t.co/C0QE84qiOq

[Andrei Matei @andreimatei1]

@asubiotto I don't really know what I'm talking about. The rationalization for LSMs that I've heard was that Google popularized them because GFS is append-only. Otherwise, in CRDB, the read-amp and write-amp are killing us, and the fact that writers externalize the cost to later compaction.

[Andrei Matei @andreimatei1]

@halvarflake Any limitations of the verifier you had to get over.

[Andrei Matei @andreimatei1]

Good commentary on the Inflation Reduction Act

[Hank Green @hankgreen]

IT'S HERE!! IT'S NOW!! IT'S HAPPENING, AND YOU CAN UNDERSTAND IT!!! https://t.co/zHR9pDT7il

[Andrei Matei @andreimatei1]

@justinjaffray @brandur After Redpanda, I think SingleStore will be the next big WASM user (and they seem to want to go beyond stored procedures https://t.co/vxuUx9VODG).
Also, Scylla, Postgres, TiDB and CockroachDB seem to all be experimenting with it. It's definitely coming to a DB near you.

[Andrei Matei @andreimatei1]

@largedatabank @CockroachDB I think you're playing word switcheroo. In an open source context, "freeloading" generally means not contributing back code, not $ (to the extent that it means anything at all).
But what we all really want, as you admit, is Amazon's $, not their patches.

[Andrei Matei @andreimatei1]

@bradfitz I think you can intercept packets/connections at different layers with BPF and keep track of sequence numbers in a map?

[Andrei Matei @andreimatei1]

@jamesacowling https://t.co/8iysaGDfxB